App can’t handle 2 participants with same Apple ID – Apple Heart Study Review

I looked forward to joining the Apple Heart Study. So when the app became available I immediately installed and ran it. After answering a couple basic questions, my participation request was sent and I got the “Notification Requested” screen. Fine. A few days later, I was told that my application was accepted and it let me get past that screen. Just around that time, my wife - whose iPhone is on the same Apple ID as mine - also decided to participate. But once she did and got accepted, the next time I started the app, I was back to the “Notification Requested” screen. I waited about a month, but the app never let me get beyond that screen.
Review by Tjwolf on Apple Heart Study.